EP 0582440 A2 19940209 - International priority calling system.
Title (en)
International priority calling system.
Title (de)
Internationales Rufsystem mit Priorität.
Title (fr)
Système d'appel international avec priorité.
Publication
Application
Priority
US 92505092 A 19920805
Abstract (en)
A telephone call initiated from a first network and directed to a second network at which network resources are temporarily unavailable to route and/or switch that call, is completed by a) estimating the anticipated time before these resources can become available, b) offering the caller the option of being called back, based on that estimation, c) calling back the caller when network resources are expected to become available, d) establishing a connection from the first network to the called party at the second network, and e) merging the two calls.
IPC 1-7
IPC 8 full level
H04M 3/42 (2006.01); H04M 3/48 (2006.01); H04M 3/58 (2006.01); H04M 7/12 (2006.01); H04Q 3/00 (2006.01); H04Q 3/545 (2006.01); H04M 3/36 (2006.01); H04M 3/487 (2006.01); H04Q 3/64 (2006.01)
CPC (source: EP US)
H04M 3/4228 (2013.01 - EP US); H04M 3/48 (2013.01 - EP US); H04M 7/123 (2013.01 - EP US); H04Q 3/0016 (2013.01 - EP US); H04M 3/36 (2013.01 - EP US); H04M 3/487 (2013.01 - EP US); H04Q 3/64 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 0582440 A2 19940209; EP 0582440 A3 19941012; EP 0582440 B1 20020918; CA 2101395 A1 19940206; CA 2101395 C 19970506; DE 69332300 D1 20021024; DE 69332300 T2 20030515; ES 2181683 T3 20030301; JP 3369263 B2 20030120; JP H06197172 A 19940715; MX 9304689 A 19940531; US 5311583 A 19940510
DOCDB simple family (application)
EP 93306000 A 19930729; CA 2101395 A 19930727; DE 69332300 T 19930729; ES 93306000 T 19930729; JP 21215493 A 19930805; MX 9304689 A 19930803; US 92505092 A 19920805